Greetings to you all,I am new to this forum and needed a huge favour from you guys. I am not an expert on VoIP but know the basics. I run a company working on IT and I have been asked to do a project, wondering if you could help me. Here are requirements 1. They want to use PC as a PBX with Asterisk phone system2. Install Ethernet network with 10 to 20 workstations with asterisk softphones3. They have subscribed ISDN line of 30 numbers and they want to distribute the incoming call to the workstations automatically.4. No need for SIP/VoIP service provider incoming and outgoing calls are through the ISDN line.Do you think this is doable?So far I have downloaded AsteriskNow, looking for PRI card and the networking is done. Do I need another component than PBX server, workstations/PCs, PRI card, AsteriskNow software on DVD, and all networking equipments? I couldn’t wait to hear from you.Many thanks,